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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-01-17 21:44:34 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-01-17 21:44:34 +0300 |
| commit | 6cff79f4b90a42d73f039564f09fa5d59ec3d8ab (patch) | |
| tree | 099dc35b21aac02b76094bd9c1551d46aea37467 /Documentation/dev-tools | |
| parent | 0c6bc37255927cf2e2cfdd9dc9bd1eced9c166de (diff) | |
| parent | 83aec96c631e0fa75cfe6d6a1b113a32151aaa88 (diff) | |
| download | linux-6cff79f4b90a42d73f039564f09fa5d59ec3d8ab.tar.xz | |
Merge tag 'uml-for-linus-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux
Pull UML updates from Richard Weinberger:
- Clang coverage support
- Many cleanups from Benjamin Berg
- Various minor fixes
* tag 'uml-for-linus-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux:
um: Mark 32bit syscall helpers as clobbering memory
um: Remove unused register save/restore functions
um: Rely on PTRACE_SETREGSET to set FS/GS base registers
Documentation: kunit: Add clang UML coverage example
arch: um: Add Clang coverage support
um: time-travel: fix time corruption
um: net: Fix return type of uml_net_start_xmit()
um: Always inline stub functions
um: Do not use printk in userspace trampoline
um: Reap winch thread if it fails
um: Do not use printk in SIGWINCH helper thread
um: Don't use vfprintf() for os_info()
um: Make errors to stop ptraced child fatal during startup
um: Drop NULL check from start_userspace
um: Drop support for hosts without SYSEMU_SINGLESTEP support
um: document arch_futex_atomic_op_inuser
um: mmu: remove stub_pages
um: Fix naming clash between UML and scheduler
um: virt-pci: fix platform map offset
Diffstat (limited to 'Documentation/dev-tools')
| -rw-r--r-- | Documentation/dev-tools/kunit/running_tips.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/dev-tools/kunit/running_tips.rst b/Documentation/dev-tools/kunit/running_tips.rst index 024e9ad1d1e9..bd689db6fdd2 100644 --- a/Documentation/dev-tools/kunit/running_tips.rst +++ b/Documentation/dev-tools/kunit/running_tips.rst @@ -139,6 +139,17 @@ If your installed version of gcc doesn't work, you can tweak the steps: $ ./tools/testing/kunit/kunit.py run --make_options=CC=/usr/bin/gcc-6 $ lcov -t "my_kunit_tests" -o coverage.info -c -d .kunit/ --gcov-tool=/usr/bin/gcov-6 +Alternatively, LLVM-based toolchains can also be used: + +.. code-block:: bash + + # Build with LLVM and append coverage options to the current config + $ ./tools/testing/kunit/kunit.py run --make_options LLVM=1 --kunitconfig=.kunit/ --kunitconfig=tools/testing/kunit/configs/coverage_uml.config + $ llvm-profdata merge -sparse default.profraw -o default.profdata + $ llvm-cov export --format=lcov .kunit/vmlinux -instr-profile default.profdata > coverage.info + # The coverage.info file is in lcov-compatible format and it can be used to e.g. generate HTML report + $ genhtml -o /tmp/coverage_html coverage.info + Running tests manually ====================== |